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ÇETİNKAYA, Hülya et al. The factors that causes upper gastrointestinal hemorrhage. Turkish Journal of Gastroenterology, [S. l.], v. 6, n. 2, p. 251–252, 1995. Disponível em: https://www.turkjgastroenterol.org/index.php/tjg/article/view/619. Acesso em: 1 jan. 2026.